When cloning a mercurial repository from a tagged revision, that tag definition
isn't actually included. This causes `hg archive -r tag_name` to fail.
Instead, just clone the repository's head and the `hg archive -r revision` will
handle getting the correct revision to for the build
In the FFMPEG formula the revision number is represented as an integer,
this ends up as an argument to Kernel#exec and it doesn't really like
that. The fix is to cast all arguments to a string.
FixesHomebrew/homebrew#171.
-fomit-frame-pointer is included for any optimisation level above O2 (including Os)
Setting MACOS_DEPLOYMENT_TARGET is unecessary if you are just setting it the same as the OS X you are running.
This means our include directory is prioritised above all -I but after all other system directories. This is how it should be.
Also helps fixHomebrew/homebrew#113.
* brew install will find an aliased formula
* aliases are searched against
* warn when creating a new formula that has an existing alias.
If Subversion has an alias "svn", then warn when the user tries to
create a new formula "svn". The formula can still be created, though
the user should make sure it's not a duplicate of the existing
aliased one.
Subversion and Objective-Caml formulas get some alises here, so we have
something to test against.
These methods could be static on Formula, but splitting them out makes
it clear to formular authors that these functions don't have anything
to do with writing new formulas.
The code in Keg.self.for path uses "path = path.parent.realpath" to walk
up subfolders looking for a Keg.
Because 'realpath' is in there, and the path is checked against
HOMEBREW_CELLAR, which may be a symlink, we need to do realpath-to-realpath
comparisons in Keg. Otherwise, we will hit equivalent but symlinked folders,
not see that they are the same, and walk all the way up to / and then
error out.
If an exception is thrown while parsing the formula file before the install.rb at_exit then it will be in $!. Marshal it back to the parent brew process.
Rather than showing a backtrace that says "couldn't find command blah". Admittedly it's possible that the error will be something else, but unlikely. And this is neater.
Ideally we'd push the bt through an error pipe like we do with install.rb. And I guess we'll do this eventually.
It's a great feature but it seems to conflict with our new system() replacement. Clearly the bug is still in our system() but what exactly it is is not clear and this bug sucks.
See Homebrew/homebrew#124
